Ignition system



Dec. 22, 1925 1,566,888

G. LucKEMAN IGNITION SYSTEM Filed Dec'. 22, 1924 INVENTOR wlTNEssEsGunherl/wnlremm Patented Dec. Z2, 1925.

UNITED STATES PAT-ENT QFFECE.

IGNITION SYSTEM. Y

Applcationled December 22, 1924. Serial No. x757,560.

To all whom t may concern.'

Be it known that I, GNTHER LUGKEMAN, a citizen of the United States, anda. resident of Morseinere, in the county of Bergen and State of NewJersey, United States of America, have invented a new and ImprovedIgnition System, of which the following is a full, clear, and enactdescription.

This .invention relates to timers for the well known Ford ignitionsystem, and has for its object the provision of a device for causing thesecondary current to produce a spark in the plugs.

A further object of the invention is the provision of a device causingdistribution of the secondary current from a single coil to the sparkplugs of the well known Ford ignition system.

This invention will be best understood f from a consideration of thefollowing detailed description, in view of the accompanying drawingsforming part of the specification; nevertheless it is to be understoodthat the invention is not contined to the disclosure, being susceptibleof such changes and modilications which shall deline any materialdifference from the salient features of the invention as expressed inthe appended claim.

Fig. 1 is a front view of a timer constructed in accordance with theprinciples of my invention.

Fig. 2 is a vertical section taken along the line 2-2 of Fig. 1.

Fig. 3 is a vertical section taken at right angles to the section shownin Fig. 2 and along the line 33 of Fig. 2.

Fig. 4 is a view in elevation of a primary distributor.

Fig. 5 shows more or less diagrammatically an ignition system.

Referring more particularly to the drawings, 1 designates a coil boxhaving primary terminals 2 and 3 for connecting the primary coil withthe primary circuit of the distributor.

A source of current 4 is connected through terminal 2 with the primarycoil and the circuit is completed through a wire 5, a carbon contactbrush 6, a distributor 7 timer in which fthe distributor 7 "is mountedand locked upon the reduced portion of the shaft by a nut 11. Theinsulated member 10 has aprojection 12 carrying a brush 13 slidablymounted in a pocket 14 of the projection 12 and is inantained in anoperative position by means of a. spring engaging a brush 15 screwedinto a threaded perforation at the inner end of socket 14. The springpresses in opposite directions for forcing the brush 13 in an outwardlyprojected position. The casing 16 formed of insulating material iscircular in formation and upon its inner periphery is provided aplurality of spaced contacts 17, 18, 19 and 20. These contacts as shownin Fig. 5 are electrically connected by suitable wires with theirrespective spark plugs generally designated by the numeral 21. Thecontacts 17 to 2O inclusive are adapted to be engaged by the brush 13which is electrically connected by means of a spring 22 with the brush15 which is adapted to be in constant contact with a collector ring 23.The collector ring 23 is electrically connected by a wire 24 passingthrough the .insulated casing 16 with the terminal 25 of the secondarycoil. The wires leading from the contacts 17 to 2O inclusive to thespark plugs 21 and the wires leading from the collector ring to thesecondary binding post 25 are f vided with an insulated plug 29 carryingthe carbon contact brush 6. The wires general" ly designated by thenumeral 30 form a con nection between the spark plugs 21 and thecontacts 17 to 20 inclusive.

The operation of my device is as follows:

The primary circuit of the battery 4 is completed as described throughthe primary coil of the box 1 and is periodically closed through thebrush 6 yengaging the contacts 31, 32, 33 and 34 consecutively and atthe. time the brush 13 makes Contact with the respective stationarycontacts 17 to 2O inclusive. As the primary current is periodicallyclosed the secondary current will periodically flow through thecollector ring i 23, the brushes 15 and 13 and through the ,contacts 17to 2O consecutively and cause sparks in the respective spark plugs 21.In this manner the secondary current is the medium for producing a sparkin said plugs.

A cap screw 29 is threaded into the plug 29 and maintains a spring 35-under tension for forcing the brush 6 into engagement with the contacts3l to 34 inclusive. The spring and screvv electrically connect brush 6and Wire 5.

The plate E26 which is secured to the casing` is provided With anopening 36 adapted to receive the bent end of a link Which is connectedwith the spark lever mounted adjacent the seat of the driver. Vlhen thespark lever is operated the plate is oscillated to cause rotation of thecasing and thereby advance or retard the spark, or, in other Words theseveral brushes are angularly displaced relative to the cam shaft 8.

It Will be noted that the outer projecting end of the screw or brush 15is slightly spaced from the ring which Will provide a jump gap for thesecondary current When the secondary circuit is closed.

A timer-distributor uni't for an ignition system having a primary andsecondary circuit and spark plugs, comprising in combination' arotatable member having spaced con'tacts, a brush adapted toperiodically conn-ect the spaced contacts With the primary circuit, aconductor ring electrically connected with the secondary circuit, sta.

tionary contacts adapted to be electrically connected With the sparkplugs, a pair of brushes periodically connecting the ring With thestationary contacts, a casing formed of insulating material and carryingthe sta tionary contacts, and a cover for the casing, said firstmentioned brush being slidably mounted in the cover.

GNTHER LUC/KIEM A, N

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